20 
ROOM V1H, 
Nat. Hist. 
stone, occurring in some coal formations, especial¬ 
ly in England, with and without vegetable im¬ 
pressions ; roe stone, as subordinate to the 
variegated sandstone.—Some of the alluvial 
substances belonging to the slate formation: 
sand, clay, peat, &c. 
(Div. 7) Rocks belonging to the formations 
of serpentine, limestone and gypsum.—Older 
serpentine mixed with primitive limestone; 
serpentine from Zoblitz in Saxony, where it is 
manufactured into a variety of vases, chimney- 
pieces, &c. ; newer serpentine, with steatite, 
amianth, garnets ; with schillerstein (the spath 
chatoyant of Hauy). 
Primitive limestone of various grain (large 
grained saline marble from Crodendorf, where 
it occurs in gneiss ; very fine grained statuary 
marble from Carara) ; with mica; with tremolite. 
Red marble from the island of Tiree.—Grey 
and variegated transition limestone, principally 
from the Hartz: with petrifactions.—Alpine 
or oldest Flotz limestone : subordinate to it 
a kind of marl called Zechstein by the practical 
miners; bituminous marlslate, with copper. &c. 
Gypsum ; older Flotz gypsum : with boracite, 
arragonite; selenite; with swinestone, subordinate 
to this formation. Gypsum of later formation, with 
fibrous gypsum, clay, &c. Selenite of very recent 
formation 
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